Vehicle Speed Sensor: Service and Repair

REMOVAL
1. Disconnect the battery.

NOTE: When the battery has been disconnected or reconnected, some abnormal drive symptoms may occur while the Powertrain Control Module (PCM) relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn the strategy.

2. Raise and support the vehicle.

WARNING: The electrical power to the air suspension system must be shut off prior to hoisting, jacking or towing an air suspension vehicle. This can be accomplished by turning off the air suspension switch located in the RH kick panel area. Failure to do so may result in unexpected inflation or deflation of the air springs which may result in shifting of the vehicle during these operations.





3. Remove the Vehicle Speed Sensor (VSS).
(1) Disconnect the electrical connector.
(2) Remove the bolt.
(3) Remove the VSS.





4. Remove the vehicle speed sensor drive gear.

INSTALLATION
1. Install the vehicle speed sensor drive gear.





2. Install the VSS.
(1) Install the VSS.
(2) Install the bolt.
(3) Connect the electrical connector.

3. Remove supports and lower the vehicle.

NOTE: If equipped with air suspension, reactivate the system by turning on the air suspension switch.

4. Reconnect the battery ground cable.